Update 'FileSystem' sample (#310)

* added new sample

* added assets

* deleted old project

* updated screenshot

FileSystemSampleCode/FileSystem/AppDelegate.cs

@@ -1,25 +1,21 @@
-using Foundation;
+using Foundation;
 using UIKit;
 
 namespace FileSystem
 {
-	/// <summary>
-	/// Sizes the window according to the screen, for iPad as well as iPhone support
-	/// </summary>
-	[Register ("AppDelegate")]
-	public class AppDelegate : UIApplicationDelegate
-	{
-		UIWindow window;
-		public override bool FinishedLaunching (UIApplication app, NSDictionary options)
-		{
-			var viewController = new FileSystemViewController();
+    // The UIApplicationDelegate for the application. This class is responsible for launching the
+    // User Interface of the application, as well as listening (and optionally responding) to application events from iOS.
+    [Register("AppDelegate")]
+    public class AppDelegate : UIApplicationDelegate
+    {
+        public override UIWindow Window { get; set; }
 
-			window = new UIWindow (UIScreen.MainScreen.Bounds);
-			window.BackgroundColor = UIColor.White;
-			window.Bounds = UIScreen.MainScreen.Bounds;
-			window.RootViewController = viewController;
-			window.MakeKeyAndVisible ();
-			return true;
-		}
-	}
-}
+        public override bool FinishedLaunching(UIApplication application, NSDictionary launchOptions)
+        {
+            // Override point for customization after application launch.
+            // If not required for your application you can safely delete this method
+
+            return true;
+        }
+    }
+}

FileSystemSampleCode/FileSystem/Assets.xcassets/AppIcon.appiconset/Contents.json

@@ -0,0 +1,244 @@
+{
+  "images": [
+    {
+      "size": "20x20",
+      "scale": "2x",
+      "idiom": "iphone"
+    },
+    {
+      "size": "20x20",
+      "scale": "3x",
+      "idiom": "iphone"
+    },
+    {
+      "filename": "icon-spotlight-29@2x.png",
+      "size": "29x29",
+      "scale": "2x",
+      "idiom": "iphone"
+    },
+    {
+      "filename": "icon-spotlight-29@3x.png",
+      "size": "29x29",
+      "scale": "3x",
+      "idiom": "iphone"
+    },
+    {
+      "filename": "icon-spotlight-40@2x.png",
+      "size": "40x40",
+      "scale": "2x",
+      "idiom": "iphone"
+    },
+    {
+      "filename": "icon-spotlight-40@3x.png",
+      "size": "40x40",
+      "scale": "3x",
+      "idiom": "iphone"
+    },
+    {
+      "filename": "icon-app-60@2x.png",
+      "size": "60x60",
+      "scale": "2x",
+      "idiom": "iphone"
+    },
+    {
+      "filename": "Icon-app-60@3x.png",
+      "size": "60x60",
+      "scale": "3x",
+      "idiom": "iphone"
+    },
+    {
+      "size": "20x20",
+      "scale": "1x",
+      "idiom": "ipad"
+    },
+    {
+      "size": "20x20",
+      "scale": "2x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "icon-spotlight-29.png",
+      "size": "29x29",
+      "scale": "1x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "icon-spotlight-29@2x.png",
+      "size": "29x29",
+      "scale": "2x",
+      "idiom": "ipad"
+    },
+    {
+      "size": "40x40",
+      "scale": "1x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "icon-spotlight-40@2x.png",
+      "size": "40x40",
+      "scale": "2x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "Icon-app-83.5@2x.png",
+      "size": "83.5x83.5",
+      "scale": "2x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "icon-app-76.png",
+      "size": "76x76",
+      "scale": "1x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "icon-app-76@2x.png",
+      "size": "76x76",
+      "scale": "2x",
+      "idiom": "ipad"
+    },
+    {
+      "filename": "app-store-logo.png",
+      "size": "1024x1024",
+      "scale": "1x",
+      "idiom": "ios-marketing"
+    },
+    {
+      "size": "60x60",
+      "scale": "2x",
+      "idiom": "car"
+    },
+    {
+      "size": "60x60",
+      "scale": "3x",
+      "idiom": "car"
+    },
+    {
+      "role": "notificationCenter",
+      "size": "24x24",
+      "subtype": "38mm",
+      "scale": "2x",
+      "idiom": "watch"
+    },
+    {
+      "role": "notificationCenter",
+      "size": "27.5x27.5",
+      "subtype": "42mm",
+      "scale": "2x",
+      "idiom": "watch"
+    },
+    {
+      "role": "companionSettings",
+      "size": "29x29",
+      "scale": "2x",
+      "idiom": "watch"
+    },
+    {
+      "role": "companionSettings",
+      "size": "29x29",
+      "scale": "3x",
+      "idiom": "watch"
+    },
+    {
+      "role": "appLauncher",
+      "size": "40x40",
+      "subtype": "38mm",
+      "scale": "2x",
+      "idiom": "watch"
+    },
+    {
+      "role": "appLauncher",
+      "size": "44x44",
+      "subtype": "40mm",
+      "scale": "2x",
+      "idiom": "watch"
+    },
+    {
+      "role": "appLauncher",
+      "size": "50x50",
+      "subtype": "44mm",
+      "scale": "2x",
+      "idiom": "watch"
+    },
+    {
+      "role": "quickLook",
+      "size": "86x86",
+      "subtype": "38mm",
+      "scale": "2x",
+      "idiom": "watch"
+    },
+    {
+      "role": "quickLook",
+      "size": "98x98",
+      "subtype": "42mm",
+      "scale": "2x",
+      "idiom": "watch"
+    },
+    {
+      "role": "quickLook",
+      "size": "108x108",
+      "subtype": "44mm",
+      "scale": "2x",
+      "idiom": "watch"
+    },
+    {
+      "size": "1024x1024",
+      "scale": "1x",
+      "idiom": "watch-marketing"
+    },
+    {
+      "size": "16x16",
+      "scale": "1x",
+      "idiom": "mac"
+    },
+    {
+      "size": "16x16",
+      "scale": "2x",
+      "idiom": "mac"
+    },
+    {
+      "size": "32x32",
+      "scale": "1x",
+      "idiom": "mac"
+    },
+    {
+      "size": "32x32",
+      "scale": "2x",
+      "idiom": "mac"
+    },
+    {
+      "size": "128x128",
+      "scale": "1x",
+      "idiom": "mac"
+    },
+    {
+      "size": "128x128",
+      "scale": "2x",
+      "idiom": "mac"
+    },
+    {
+      "size": "256x256",
+      "scale": "1x",
+      "idiom": "mac"
+    },
+    {
+      "size": "256x256",
+      "scale": "2x",
+      "idiom": "mac"
+    },
+    {
+      "size": "512x512",
+      "scale": "1x",
+      "idiom": "mac"
+    },
+    {
+      "size": "512x512",
+      "scale": "2x",
+      "idiom": "mac"
+    }
+  ],
+  "info": {
+    "version": 1,
+    "author": "xcode"
+  }
+}

FileSystemSampleCode/FileSystem/Assets.xcassets/Contents.json

@@ -0,0 +1,6 @@
+{
+  "info" : {
+    "version" : 1,
+    "author" : "xcode"
+  }
+}

FileSystemSampleCode/FileSystem/Classes/Account.cs

@@ -1,28 +0,0 @@
-using System;
-using System.Collections.Generic;
-
-using Foundation;
-
-namespace FileSystem
-{
-	// We use the Preserve attribute to ensure that all the properties of the object
-	// are preserve even when the linker is ran on the assembly. The reasoning
-	// for this pattern is to ensure that libraries, such as Newsoft.Json, that use
-	// reflection can find properties that could be removed by the linker.
-	[Preserve]
-	public class Account
-	{
-		#region Computed Properties
-		public string Email { get; set; }
-		public bool Active { get; set; }
-		public DateTime CreatedDate { get; set; }
-		public List<string> Roles { get; set; }
-		#endregion
-
-		#region Constructors
-		public Account() {
-
-		}
-		#endregion
-	}
-}

FileSystemSampleCode/FileSystem/DataManager.cs

@@ -0,0 +1,113 @@
+using Newtonsoft.Json;
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Text;
+using System.Xml.Serialization;
+
+namespace FileSystem
+{
+    /// <summary>
+    /// This class contains the code shown in the article "Working with the File System"
+    /// </summary>
+    public static class DataManager
+    {
+        public static string ReadText()
+        {
+            var text = File.ReadAllText("TestData/ReadMe.txt");
+            Console.WriteLine(text);
+
+            return text;
+        }
+
+        public static string ReadDirectories()
+        {
+            var result = new StringBuilder();
+
+            var directories = Directory.EnumerateDirectories("./");
+            foreach (var directory in directories)
+            {
+                result.AppendLine(directory);
+                Console.WriteLine(directory);
+            }
+
+            return result.ToString();
+        }
+
+        public static string ReadAll()
+        {
+            var result = new StringBuilder();
+
+            var fileOrDirectory = Directory.EnumerateFileSystemEntries("./");
+            foreach (var entry in fileOrDirectory)
+            {
+                result.AppendLine(entry);
+                Console.WriteLine(entry);
+            }
+
+            return result.ToString();
+        }
+
+        public static string ReadXml()
+        {
+            var result = string.Empty;
+
+            using (TextReader reader = new StreamReader("TestData/Test.xml"))
+            {
+                var serializer = new XmlSerializer(typeof(TestXml));
+                var xml = serializer.Deserialize(reader) as TestXml;
+
+                result = "XML was deserialized." + Environment.NewLine
+                       + "-----------------" + Environment.NewLine + Environment.NewLine
+                       + "Title: " + xml.Title + Environment.NewLine
+                       + "Description: " + xml.Description;
+            }
+
+            return result;
+        }
+
+        public static string WriteFile()
+        {
+            var documents = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
+            var filename = Path.Combine(documents, "Write.txt");
+            File.WriteAllText(filename, "Write this text into a file!");
+
+            return "Text was written to a file." + Environment.NewLine
+                 + "-----------------" + Environment.NewLine
+                 + File.ReadAllText(filename);
+        }
+
+        public static string WriteJson()
+        {
+            // Create a new record
+            var account = new Account()
+            {
+                Email = "monkey@xamarin.com",
+                Active = true,
+                CreatedDate = new DateTime(2015, 5, 27, 0, 0, 0, DateTimeKind.Utc),
+                Roles = new List<string> { "User", "Admin" }
+            };
+
+            // Serialize object
+            var json = JsonConvert.SerializeObject(account, Formatting.Indented);
+
+            // Save to file
+            var documents = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
+            var filename = Path.Combine(documents, "account.json");
+            File.WriteAllText(filename, json);
+
+            return json;
+        }
+
+        public static string CreateDirectory()
+        {
+            var documents = Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments);
+            var directoryName = Path.Combine(documents, "NewDirectory");
+            Directory.CreateDirectory(directoryName);
+
+            return "A directory was created." + Environment.NewLine
+                 + "-----------------" + Environment.NewLine
+                 + directoryName;
+        }
+    }
+}

FileSystemSampleCode/FileSystem/Entitlements.plist

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8" ?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+</dict>
+</plist>

FileSystemSampleCode/FileSystem/FileSystem.csproj

@@ -1,125 +1,136 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
-    <Platform Condition=" '$(Platform)' == '' ">iPhoneSimulator</Platform>
-    <ProductVersion>8.0.30703</ProductVersion>
-    <SchemaVersion>2.0</SchemaVersion>
-    <ProjectGuid>{367D4ECC-D04A-41FB-A784-4D10F30666C8}</ProjectGuid>
-    <ProjectTypeGuids>{FEACFBD2-3405-455C-9665-78FE426C6842};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
-    <OutputType>Exe</OutputType>
-    <RootNamespace>FileSystem</RootNamespace>
-    <AssemblyName>FileSystem</AssemblyName>
-    <TargetFrameworkIdentifier>Xamarin.iOS</TargetFrameworkIdentifier>
-    <TargetFrameworkVersion>v1.0</TargetFrameworkVersion>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|iPhoneSimulator' ">
-    <DebugSymbols>True</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>False</Optimize>
-    <OutputPath>bin\iPhoneSimulator\Debug</OutputPath>
-    <DefineConstants>DEBUG</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <MtouchDebug>True</MtouchDebug>
-    <ConsolePause>False</ConsolePause>
-    <MtouchArch>x86_64</MtouchArch>
-    <MtouchI18n></MtouchI18n>
-    <MtouchUseRefCounting>true</MtouchUseRefCounting>
-    <MtouchHttpClientHandler>NSUrlSessionHandler</MtouchHttpClientHandler>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|iPhoneSimulator' ">
-    <DebugType>none</DebugType>
-    <Optimize>False</Optimize>
-    <OutputPath>bin\iPhoneSimulator\Release</OutputPath>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <MtouchLink>None</MtouchLink>
-    <ConsolePause>False</ConsolePause>
-    <MtouchArch>x86_64</MtouchArch>
-    <MtouchI18n></MtouchI18n>
-    <MtouchHttpClientHandler>NSUrlSessionHandler</MtouchHttpClientHandler>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|iPhone' ">
-    <DebugSymbols>True</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>False</Optimize>
-    <OutputPath>bin\iPhone\Debug</OutputPath>
-    <DefineConstants>DEBUG</DefineConstants>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <MtouchDebug>True</MtouchDebug>
-    <CodesignKey>iPhone Developer</CodesignKey>
-    <ConsolePause>False</ConsolePause>
-    <MtouchArch>ARM64</MtouchArch>
-    <MtouchHttpClientHandler>NSUrlSessionHandler</MtouchHttpClientHandler>
-  </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|iPhone' ">
-    <DebugType>none</DebugType>
-    <Optimize>False</Optimize>
-    <OutputPath>bin\iPhone\Release</OutputPath>
-    <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
-    <ConsolePause>False</ConsolePause>
-    <CodesignKey>iPhone Developer</CodesignKey>
-    <MtouchArch>ARM64</MtouchArch>
-    <MtouchHttpClientHandler>NSUrlSessionHandler</MtouchHttpClientHandler>
-  </PropertyGroup>
-  <ItemGroup>
-    <Reference Include="System" />
-    <Reference Include="System.Xml" />
-    <Reference Include="System.Core" />
-    <Reference Include="Xamarin.iOS" />
-    <Reference Include="Newtonsoft.Json">
-      <HintPath>..\packages\Newtonsoft.Json.7.0.1\lib\portable-net40+sl5+wp80+win8+wpa81\Newtonsoft.Json.dll</HintPath>
-    </Reference>
-  </ItemGroup>
-  <ItemGroup>
-    <Compile Include="Main.cs" />
-    <Compile Include="AppDelegate.cs" />
-    <Compile Include="FileSystemViewController.cs" />
-    <Compile Include="SampleCode.cs" />
-    <Compile Include="TestData\TestXml.cs" />
-    <Compile Include="Classes\Account.cs" />
-  </ItemGroup>
-  <ItemGroup>
-    <Folder Include="TestData\" />
-    <Folder Include="Resources\" />
-    <Folder Include="Classes\" />
-  </ItemGroup>
-  <ItemGroup>
-    <Content Include="TestData\ReadMe.txt" />
-    <Content Include="TestData\Test.xml" />
-  </ItemGroup>
-  <ItemGroup>
-    <None Include="Info.plist" />
-    <None Include="packages.config" />
-  </ItemGroup>
-  <ItemGroup>
-    <BundleResource Include="Resources\icon-72.png" />
-    <BundleResource Include="Resources\icon-29.png" />
-    <BundleResource Include="Resources\icon-50.png" />
-    <BundleResource Include="Resources\icon-58.png" />
-    <BundleResource Include="Resources\icon-100.png" />
-    <BundleResource Include="Resources\iTunesArtwork%402x.png" />
-    <BundleResource Include="Resources\Default-568h%402x.png" />
-    <BundleResource Include="Resources\Default-Landscape%402x~ipad.png" />
-    <BundleResource Include="Resources\Default-Landscape~ipad.png" />
-    <BundleResource Include="Resources\Default-Portrait%402x~ipad.png" />
-    <BundleResource Include="Resources\Default-Portrait~ipad.png" />
-    <BundleResource Include="Resources\Default.png" />
-    <BundleResource Include="Resources\Default%402x.png" />
-    <BundleResource Include="Resources\icon-57.png" />
-    <BundleResource Include="Resources\icon-114.png" />
-    <BundleResource Include="Resources\icon-144.png" />
-    <BundleResource Include="Resources\Icon-60%402x.png" />
-    <BundleResource Include="Resources\Icon-76.png" />
-    <BundleResource Include="Resources\Icon-76%402x.png" />
-    <BundleResource Include="Resources\Icon-Small-40.png" />
-    <BundleResource Include="Resources\Icon-Small-40%402x.png" />
-  </ItemGroup>
-  <ItemGroup>
-    <ITunesArtwork Include="Resources\iTunesArtwork.png" />
-  </ItemGroup>
-  <Import Project="$(MSBuildExtensionsPath)\Xamarin\iOS\Xamarin.iOS.CSharp.targets" />
+<?xml version="1.0" encoding="utf-8"?>
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <PropertyGroup>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Platform Condition=" '$(Platform)' == '' ">iPhoneSimulator</Platform>
+    <ProductVersion>8.0.30703</ProductVersion>
+    <SchemaVersion>2.0</SchemaVersion>
+    <ProjectGuid>{7652DDB4-2A98-4533-8B7A-A662DACF04EB}</ProjectGuid>
+    <ProjectTypeGuids>{FEACFBD2-3405-455C-9665-78FE426C6842};{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}</ProjectTypeGuids>
+    <OutputType>Exe</OutputType>
+    <RootNamespace>FileSystem</RootNamespace>
+    <AssemblyName>FileSystem</AssemblyName>
+    <IPhoneResourcePrefix>Resources</IPhoneResourcePrefix>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|iPhoneSimulator' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\iPhoneSimulator\Debug</OutputPath>
+    <DefineConstants>DEBUG;ENABLE_TEST_CLOUD;</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <CodesignKey>iPhone Developer</CodesignKey>
+    <MtouchDebug>true</MtouchDebug>
+    <MtouchNoSymbolStrip>true</MtouchNoSymbolStrip>
+    <MtouchFastDev>true</MtouchFastDev>
+    <IOSDebuggerPort>45354</IOSDebuggerPort>
+    <MtouchLink>None</MtouchLink>
+    <MtouchArch>x86_64</MtouchArch>
+    <MtouchHttpClientHandler>NSUrlSessionHandler</MtouchHttpClientHandler>
+    <DeviceSpecificBuild>false</DeviceSpecificBuild>
+    <MtouchVerbosity></MtouchVerbosity>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|iPhone' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\iPhone\Release</OutputPath>
+    <DefineConstants></DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <CodesignKey>iPhone Developer</CodesignKey>
+    <MtouchUseLlvm>true</MtouchUseLlvm>
+    <MtouchFloat32>true</MtouchFloat32>
+    <CodesignEntitlements>Entitlements.plist</CodesignEntitlements>
+    <MtouchLink>SdkOnly</MtouchLink>
+    <MtouchArch>ARM64</MtouchArch>
+    <MtouchHttpClientHandler>NSUrlSessionHandler</MtouchHttpClientHandler>
+    <MtouchVerbosity></MtouchVerbosity>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|iPhoneSimulator' ">
+    <DebugType>pdbonly</DebugType>
+    <Optimize>true</Optimize>
+    <OutputPath>bin\iPhoneSimulator\Release</OutputPath>
+    <DefineConstants></DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <CodesignKey>iPhone Developer</CodesignKey>
+    <MtouchNoSymbolStrip>true</MtouchNoSymbolStrip>
+    <MtouchLink>None</MtouchLink>
+    <MtouchArch>x86_64</MtouchArch>
+    <MtouchHttpClientHandler>NSUrlSessionHandler</MtouchHttpClientHandler>
+    <MtouchVerbosity></MtouchVerbosity>
+  </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|iPhone' ">
+    <DebugSymbols>true</DebugSymbols>
+    <DebugType>full</DebugType>
+    <Optimize>false</Optimize>
+    <OutputPath>bin\iPhone\Debug</OutputPath>
+    <DefineConstants>DEBUG;ENABLE_TEST_CLOUD;</DefineConstants>
+    <ErrorReport>prompt</ErrorReport>
+    <WarningLevel>4</WarningLevel>
+    <CodesignKey>iPhone Developer</CodesignKey>
+    <DeviceSpecificBuild>true</DeviceSpecificBuild>
+    <MtouchDebug>true</MtouchDebug>
+    <MtouchNoSymbolStrip>true</MtouchNoSymbolStrip>
+    <MtouchFastDev>true</MtouchFastDev>
+    <MtouchFloat32>true</MtouchFloat32>
+    <CodesignEntitlements>Entitlements.plist</CodesignEntitlements>
+    <IOSDebuggerPort>65459</IOSDebuggerPort>
+    <MtouchLink>SdkOnly</MtouchLink>
+    <MtouchArch>ARM64</MtouchArch>
+    <MtouchHttpClientHandler>NSUrlSessionHandler</MtouchHttpClientHandler>
+    <MtouchVerbosity></MtouchVerbosity>
+  </PropertyGroup>
+  <ItemGroup>
+    <Reference Include="System" />
+    <Reference Include="System.Xml" />
+    <Reference Include="System.Core" />
+    <Reference Include="Xamarin.iOS" />
+    <Reference Include="Newtonsoft.Json">
+      <HintPath>..\packages\Newtonsoft.Json.11.0.2\lib\netstandard2.0\Newtonsoft.Json.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup>
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\Contents.json" />
+    <ImageAsset Include="Assets.xcassets\Contents.json" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\app-store-logo.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\icon-app-60%402x.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\Icon-app-60%403x.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\Icon-app-83.5%402x.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\icon-app-76%402x.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\icon-app-76.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\icon-spotlight-29.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\icon-spotlight-29%402x.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\icon-spotlight-29%403x.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\icon-spotlight-40%403x.png" />
+    <ImageAsset Include="Assets.xcassets\AppIcon.appiconset\icon-spotlight-40%402x.png" />
+  </ItemGroup>
+  <ItemGroup>
+    <Folder Include="TestData\" />
+  </ItemGroup>
+  <ItemGroup>
+    <InterfaceDefinition Include="LaunchScreen.storyboard" />
+    <InterfaceDefinition Include="Main.storyboard" />
+  </ItemGroup>
+  <ItemGroup>
+    <None Include="Info.plist" />
+    <None Include="Entitlements.plist" />
+    <None Include="packages.config" />
+  </ItemGroup>
+  <ItemGroup>
+    <Compile Include="Main.cs" />
+    <Compile Include="AppDelegate.cs" />
+    <Compile Include="ViewController.cs" />
+    <Compile Include="ViewController.designer.cs">
+      <DependentUpon>ViewController.cs</DependentUpon>
+    </Compile>
+    <Compile Include="DataManager.cs" />
+    <Compile Include="Models.cs" />
+  </ItemGroup>
+  <ItemGroup>
+    <Content Include="TestData\ReadMe.txt" />
+    <Content Include="TestData\Test.xml" />
+  </ItemGroup>
+  <Import Project="$(MSBuildExtensionsPath)\Xamarin\iOS\Xamarin.iOS.CSharp.targets" />
 </Project>

FileSystemSampleCode/FileSystem/FileSystemViewController.cs

@@ -1,93 +0,0 @@
-using System;
-using CoreGraphics;
-using System.Linq;
-using UIKit;
-using Foundation;
-
-namespace FileSystem
-{
-	/// <summary>
-	/// View containing Buttons and TextView to show off the samples
-	/// </summary>
-	public class FileSystemViewController : UIViewController
-	{
-		UIButton btnFiles, btnDirectories, btnXml, btnAll, btnWrite, btnDirectory;
-		UITextView txtView;
-		bool writeJson = true;
-
-		public override void ViewDidLoad ()
-		{
-			base.ViewDidLoad ();
-
-			// Create the buttons and TextView to run the sample code
-			btnFiles = UIButton.FromType(UIButtonType.RoundedRect);
-			btnFiles.Frame = new CGRect(10,10,145,50);
-			btnFiles.SetTitle("Open 'ReadMe.txt'", UIControlState.Normal);
-
-			btnDirectories = UIButton.FromType(UIButtonType.RoundedRect);
-			btnDirectories.Frame = new CGRect(10,70,145,50);
-			btnDirectories.SetTitle("List Directories", UIControlState.Normal);
-
-			btnXml = UIButton.FromType(UIButtonType.RoundedRect);
-			btnXml.Frame = new CGRect(165,10,145,50);
-			btnXml.SetTitle("Open 'Test.xml'", UIControlState.Normal);
-
-			btnAll = UIButton.FromType(UIButtonType.RoundedRect);
-			btnAll.Frame = new CGRect(165,70,145,50);
-			btnAll.SetTitle("List All", UIControlState.Normal);
-
-			btnWrite = UIButton.FromType(UIButtonType.RoundedRect);
-			btnWrite.Frame = new CGRect(10,130,145,50);
-			btnWrite.SetTitle("Write File", UIControlState.Normal);
-
-			btnDirectory = UIButton.FromType(UIButtonType.RoundedRect);
-			btnDirectory.Frame = new CGRect(165,130,145,50);
-			btnDirectory.SetTitle("Create Directory", UIControlState.Normal);
-
-			txtView = new UITextView(new CGRect(10, 190, 300, 250));
-			txtView.Editable = false;
-			txtView.ScrollEnabled = true;
-
-			// Wire up the buttons to the SamplCode class methods
-			btnFiles.TouchUpInside += (sender, e) => {
-				SampleCode.ReadText(txtView);
-			};
-
-			btnDirectories.TouchUpInside += (sender, e) => {
-				SampleCode.ReadDirectories(txtView);
-			};
-
-			btnAll.TouchUpInside += (sender, e) => {
-				SampleCode.ReadAll(txtView);
-			};
-
-			btnXml.TouchUpInside += (sender, e) => {
-				SampleCode.ReadXml(txtView);
-			};
-
-			btnWrite.TouchUpInside += (sender, e) => {
-				if (writeJson ) {
-					SampleCode.WriteJson(txtView);
-				} else {
-					SampleCode.WriteFile(txtView);
-				}
-			};
-
-			btnDirectory.TouchUpInside += (sender, e) => {
-				SampleCode.CreateDirectory(txtView);
-			};
-
-			// Add the controls to the view
-			this.Add(btnFiles);
-			this.Add(btnDirectories);
-			this.Add(btnXml);
-			this.Add(btnAll);
-			this.Add(btnWrite);
-			this.Add(btnDirectory);
-			this.Add(txtView);
-
-			// Write out this special folder, just for curiousity's sake
-			Console.WriteLine("MyDocuments:"+Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments));
-		}
-	}
-}

FileSystemSampleCode/FileSystem/Info.plist

@@ -1,51 +1,41 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="UTF-8"?>
 <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
-	<key>CFBundleIconFiles</key>
-	<array>
-		<string>Resources/icon-57.png</string>
-		<string>Resources/icon-114.png</string>
-		<string>Resources/icon-72.png</string>
-		<string>Resources/icon-144.png</string>
-		<string>Resources/icon-29.png</string>
-		<string>Resources/icon-58.png</string>
-		<string>Resources/icon-50.png</string>
-		<string>Resources/icon-100.png</string>
-		<string>Icon-60@2x</string>
-		<string>Icon-76</string>
-		<string>Icon-76@2x</string>
-		<string>Icon-Small-40</string>
-		<string>Icon-Small-40@2x</string>
-	</array>
-	<key>CFBundleDisplayName</key>
-	<string>FileSystem</string>
+	<key>CFBundleName</key>
+	<string>File System</string>
 	<key>CFBundleIdentifier</key>
-	<string>com.xamarin.samples.filesystem</string>
+	<string>com.xamarin.file-system</string>
+	<key>CFBundleShortVersionString</key>
+	<string>1.0</string>
 	<key>CFBundleVersion</key>
 	<string>1.0</string>
+	<key>LSRequiresIPhoneOS</key>
+	<true/>
+	<key>MinimumOSVersion</key>
+	<string>9.0</string>
 	<key>UIDeviceFamily</key>
 	<array>
 		<integer>1</integer>
 		<integer>2</integer>
 	</array>
 	<key>UIFileSharingEnabled</key>
-	<true />
+	<true/>
+	<key>UILaunchStoryboardName</key>
+	<string>LaunchScreen</string>
+	<key>UIMainStoryboardFile</key>
+	<string>Main</string>
+	<key>UIRequiredDeviceCapabilities</key>
+	<array>
+		<string>armv7</string>
+	</array>
 	<key>UISupportedInterfaceOrientations</key>
 	<array>
 		<string>UIInterfaceOrientationPortrait</string>
-		<string>UIInterfaceOrientationPortraitUpsideDown</string>
-		<string>UIInterfaceOrientationLandscapeLeft</string>
-		<string>UIInterfaceOrientationLandscapeRight</string>
-	</array>
-	<key>MinimumOSVersion</key>
-	<string>9.0</string>
-	<key>UISupportedInterfaceOrientations~ipad</key>
-	<array>
-		<string>UIInterfaceOrientationPortrait</string>
-		<string>UIInterfaceOrientationPortraitUpsideDown</string>
 		<string>UIInterfaceOrientationLandscapeLeft</string>
 		<string>UIInterfaceOrientationLandscapeRight</string>
 	</array>
+	<key>XSAppIconAssets</key>
+	<string>Assets.xcassets/AppIcon.appiconset</string>
 </dict>
 </plist>

FileSystemSampleCode/FileSystem/LaunchScreen.storyboard

@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" launchScreen="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="01J-lp-oVM">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="EHf-IW-A2E">
+            <objects>
+                <viewController id="01J-lp-oVM" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="Ze5-6b-2t3">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <label opaque="NO" userInteractionEnabled="NO" contentMode="left" horizontalHuggingPriority="251" verticalHuggingPriority="251" text="Xamarin" textAlignment="natural" lineBreakMode="tailTruncation" baselineAdjustment="alignBaselines" adjustsFontSizeToFit="NO" translatesAutoresizingMaskIntoConstraints="NO" id="GQa-Eu-V9z">
+                                <rect key="frame" x="117" y="319" width="142" height="48"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="40"/>
+                                <color key="textColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <nil key="highlightedColor"/>
+                            </label>
+                        </subviews>
+                        <color key="backgroundColor" white="0.0" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                        <constraints>
+                            <constraint firstItem="GQa-Eu-V9z" firstAttribute="centerY" secondItem="fKj-eb-QrB" secondAttribute="centerY" id="GnQ-Ov-WZ3"/>
+                            <constraint firstItem="GQa-Eu-V9z" firstAttribute="centerX" secondItem="fKj-eb-QrB" secondAttribute="centerX" id="eVa-7s-Ixu"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="fKj-eb-QrB"/>
+                    </view>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="iYj-Kq-Ea1" userLabel="First Responder" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="53" y="375"/>
+        </scene>
+    </scenes>
+</document>

FileSystemSampleCode/FileSystem/Main.cs

@@ -1,19 +1,15 @@
-
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using Foundation;
-using UIKit;
+using UIKit;
 
 namespace FileSystem
 {
-	/// <summary>Kick everything off</summary>
-	public class Application
-	{
-		static void Main (string[] args)
-		{
-			UIApplication.Main (args, null, "AppDelegate");
-		}
-	}
-}
-
+    public class Application
+    {
+        // This is the main entry point of the application.
+        static void Main(string[] args)
+        {
+            // if you want to use a different Application Delegate class from "AppDelegate"
+            // you can specify it here.
+            UIApplication.Main(args, null, "AppDelegate");
+        }
+    }
+}

FileSystemSampleCode/FileSystem/Main.storyboard

@@ -0,0 +1,106 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14460.31" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
+    <device id="retina4_7" orientation="portrait">
+        <adaptation id="fullscreen"/>
+    </device>
+    <dependencies>
+        <deployment identifier="iOS"/>
+        <plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14460.20"/>
+        <capability name="Safe area layout guides" minToolsVersion="9.0"/>
+        <capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
+    </dependencies>
+    <scenes>
+        <!--View Controller-->
+        <scene sceneID="tne-QT-ifu">
+            <objects>
+                <viewController id="BYZ-38-t0r" customClass="ViewController" sceneMemberID="viewController">
+                    <view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
+                        <rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
+                        <autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
+                        <subviews>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="v2X-WM-LXP">
+                                <rect key="frame" x="22.5" y="36" width="141" height="33"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <state key="normal" title="Open 'ReadMe.txt'"/>
+                                <connections>
+                                    <action selector="OpenReadMe:" destination="BYZ-38-t0r" eventType="touchUpInside" id="223"/>
+                                </connections>
+                            </button>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="XOT-h9-XIw">
+                                <rect key="frame" x="35.5" y="85" width="115" height="33"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <state key="normal" title="List Directories"/>
+                                <connections>
+                                    <action selector="ListDirectories:" destination="BYZ-38-t0r" eventType="touchUpInside" id="225"/>
+                                </connections>
+                            </button>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="6dW-gt-zEm">
+                                <rect key="frame" x="248" y="85" width="51" height="33"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <state key="normal" title="List All"/>
+                                <connections>
+                                    <action selector="ListAll:" destination="BYZ-38-t0r" eventType="touchUpInside" id="226"/>
+                                </connections>
+                            </button>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="XcE-vF-Usq">
+                                <rect key="frame" x="211.5" y="36" width="124" height="33"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <state key="normal" title="Open &quot;Test.xml&quot;"/>
+                                <connections>
+                                    <action selector="OpenTestFile:" destination="BYZ-38-t0r" eventType="touchUpInside" id="224"/>
+                                </connections>
+                            </button>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="LAF-ay-OZE">
+                                <rect key="frame" x="57" y="134" width="72" height="33"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <state key="normal" title="Write File"/>
+                                <connections>
+                                    <action selector="WriteFile:" destination="BYZ-38-t0r" eventType="touchUpInside" id="227"/>
+                                </connections>
+                            </button>
+                            <button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="PqG-9v-ZEl">
+                                <rect key="frame" x="210.5" y="134" width="126" height="33"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="17"/>
+                                <state key="normal" title="Create Directory"/>
+                                <connections>
+                                    <action selector="CreateDirectory:" destination="BYZ-38-t0r" eventType="touchUpInside" id="228"/>
+                                </connections>
+                            </button>
+                            <textView clipsSubviews="YES" multipleTouchEnabled="YES" contentMode="scaleToFill" editable="NO" textAlignment="natural" translatesAutoresizingMaskIntoConstraints="NO" id="dE8-Xc-9if">
+                                <rect key="frame" x="16" y="183" width="343" height="464"/>
+                                <color key="backgroundColor" white="1" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
+                                <fontDescription key="fontDescription" type="system" pointSize="15"/>
+                                <textInputTraits key="textInputTraits" autocapitalizationType="sentences"/>
+                            </textView>
+                        </subviews>
+                        <color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
+                        <constraints>
+                            <constraint firstItem="LAF-ay-OZE" firstAttribute="top" secondItem="XOT-h9-XIw" secondAttribute="bottom" constant="16" id="1DK-Me-hbZ"/>
+                            <constraint firstItem="dE8-Xc-9if" firstAttribute="leading" secondItem="dL8-wU-OE1" secondAttribute="leading" constant="16" id="672-ir-gkG"/>
+                            <constraint firstItem="v2X-WM-LXP" firstAttribute="trailing" secondItem="dL8-wU-OE1" secondAttribute="centerX" constant="-24" id="Tzd-Cl-tZM"/>
+                            <constraint firstItem="XcE-vF-Usq" firstAttribute="top" secondItem="dL8-wU-OE1" secondAttribute="top" constant="16" id="VfL-SH-IBk"/>
+                            <constraint firstItem="dE8-Xc-9if" firstAttribute="top" secondItem="LAF-ay-OZE" secondAttribute="bottom" constant="16" id="Xzh-rI-Ys2"/>
+                            <constraint firstItem="v2X-WM-LXP" firstAttribute="top" secondItem="dL8-wU-OE1" secondAttribute="top" constant="16" id="Zfb-Rr-izB"/>
+                            <constraint firstItem="PqG-9v-ZEl" firstAttribute="top" secondItem="6dW-gt-zEm" secondAttribute="bottom" constant="16" id="fGP-dg-7Zj"/>
+                            <constraint firstItem="XOT-h9-XIw" firstAttribute="top" secondItem="v2X-WM-LXP" secondAttribute="bottom" constant="16" id="fWv-KS-IbO"/>
+                            <constraint firstItem="dL8-wU-OE1" firstAttribute="bottom" secondItem="dE8-Xc-9if" secondAttribute="bottom" constant="20" id="ffa-rF-WVk"/>
+                            <constraint firstItem="XcE-vF-Usq" firstAttribute="leading" secondItem="dL8-wU-OE1" secondAttribute="centerX" constant="24" id="gsi-Oj-auX"/>
+                            <constraint firstItem="XOT-h9-XIw" firstAttribute="centerX" secondItem="v2X-WM-LXP" secondAttribute="centerX" id="nxq-nv-f4J"/>
+                            <constraint firstItem="6dW-gt-zEm" firstAttribute="centerX" secondItem="XcE-vF-Usq" secondAttribute="centerX" id="rQW-b3-cnd"/>
+                            <constraint firstItem="dL8-wU-OE1" firstAttribute="trailing" secondItem="dE8-Xc-9if" secondAttribute="trailing" constant="16" id="s0Y-yh-hs9"/>
+                            <constraint firstItem="6dW-gt-zEm" firstAttribute="top" secondItem="XcE-vF-Usq" secondAttribute="bottom" constant="16" id="s3n-te-epn"/>
+                            <constraint firstItem="PqG-9v-ZEl" firstAttribute="centerX" secondItem="6dW-gt-zEm" secondAttribute="centerX" id="sZc-B9-tv4"/>
+                            <constraint firstItem="LAF-ay-OZE" firstAttribute="centerX" secondItem="XOT-h9-XIw" secondAttribute="centerX" id="wA1-d0-bXm"/>
+                        </constraints>
+                        <viewLayoutGuide key="safeArea" id="dL8-wU-OE1"/>
+                    </view>
+                    <connections>
+                        <outlet property="textView" destination="dE8-Xc-9if" id="name-outlet-dE8-Xc-9if"/>
+                    </connections>
+                </viewController>
+                <placeholder placeholderIdentifier="IBFirstResponder" id="dkx-z0-nzr" sceneMemberID="firstResponder"/>
+            </objects>
+            <point key="canvasLocation" x="-0.80000000000000004" y="-0.44977509999999998"/>
+        </scene>
+    </scenes>
+</document>

FileSystemSampleCode/FileSystem/Models.cs

@@ -0,0 +1,30 @@
+using Foundation;
+using System;
+using System.Collections.Generic;
+
+namespace FileSystem
+{
+    [Preserve]
+    public class TestXml
+    {
+        public string Title { get; set; }
+
+        public string Description { get; set; }
+    }
+
+    // We use the Preserve attribute to ensure that all the properties of the object
+    // are preserve even when the linker is ran on the assembly. The reasoning
+    // for this pattern is to ensure that libraries, such as Newsoft.Json, that use
+    // reflection can find properties that could be removed by the linker.
+    [Preserve]
+    public class Account
+    {
+        public string Email { get; set; }
+
+        public bool Active { get; set; }
+
+        public DateTime CreatedDate { get; set; }
+
+        public List<string> Roles { get; set; }
+   }
+}

FileSystemSampleCode/FileSystem/SampleCode.cs

@@ -1,126 +0,0 @@
-using System;
-using System.IO;
-using System.Xml;
-using System.Xml.Serialization;
-using UIKit;
-using System.Collections.Generic;
-using Newtonsoft.Json;
-
-namespace FileSystem
-{
-	/// <summary>
-	/// This class contains the code shown in the article "Working with the File System"
-	/// </summary>
-	public class SampleCode
-	{
-		public static void ReadText(UITextView display)
-		{
-			display.Text = "";
-
-			// Sample code from the article
-			var text = System.IO.File.ReadAllText("TestData/ReadMe.txt");
-			Console.WriteLine(text);
-
-			// Output to app UITextView
-			display.Text = text;
-		}
-
-		public static void ReadDirectories(UITextView display)
-		{
-			display.Text = "";
-
-			// Sample code from the article
-			var directories = Directory.EnumerateDirectories("./");
-			foreach (var directory in directories) {
-				Console.WriteLine(directory);
-			}
-
-			// Output to app UITextView
-			foreach (var directory in directories) {
-				display.Text += directory + Environment.NewLine;
-			}
-		}
-
-		public static void ReadAll(UITextView display)
-		{
-			display.Text = "";
-
-			// Sample code from the article
-			var fileOrDirectory = Directory.EnumerateFileSystemEntries("./");
-			foreach (var entry in fileOrDirectory) {
-				Console.WriteLine(entry);
-			}
-
-			// Output to app UITextView
-			foreach (var entry in fileOrDirectory) {
-				display.Text += entry + Environment.NewLine;
-			}
-		}
-
-		public static void ReadXml(UITextView display)
-		{
-			display.Text = "";
-
-			// Output to app UITextView
-			using (TextReader reader = new StreamReader("TestData/Test.xml")) {
-				XmlSerializer serializer = new XmlSerializer(typeof(TestXml));
-				var xml = (TestXml)serializer.Deserialize(reader);
-
-				display.Text = "XML was deserialized." + Environment.NewLine
-						+ "-----------------" + Environment.NewLine
-						+ "Title: " + xml.Title + Environment.NewLine
-						+ "Description: " + xml.Description;
-			}
-		}
-
-		public static void WriteFile(UITextView display)
-		{
-			// Sample code from the article
-			var documents =
-				Environment.GetFolderPath (Environment.SpecialFolder.MyDocuments);
-			var filename = Path.Combine (documents, "Write.txt");
-			File.WriteAllText(filename, "Write this text into a file!");
-
-			// Output to app UITextView
-			display.Text = "Text was written to a file." + Environment.NewLine
-						+ "-----------------" + Environment.NewLine
-						+ System.IO.File.ReadAllText(filename);
-		}
-
-		public static void WriteJson(UITextView display) {
-
-			// Create a new record
-			var account = new Account(){
-			    Email = "monkey@xamarin.com",
-			    Active = true,
-			    CreatedDate = new DateTime(2015, 5, 27, 0, 0, 0, DateTimeKind.Utc),
-			    Roles = new List<string> {"User", "Admin"}
-			};
-
-			// Serialize object
-			var json = JsonConvert.SerializeObject(account, Newtonsoft.Json.Formatting.Indented);
-
-			// Save to file
-			var documents =	Environment.GetFolderPath (Environment.SpecialFolder.MyDocuments);
-			var filename = Path.Combine (documents, "account.json");
-			File.WriteAllText(filename, json);
-
-			// Display output
-			display.Text = json;
-		}
-
-		public static void CreateDirectory(UITextView display)
-		{
-			// Sample code from the article
-			var documents =
-				Environment.GetFolderPath (Environment.SpecialFolder.MyDocuments);
-			var directoryname = Path.Combine (documents, "NewDirectory");
-			Directory.CreateDirectory(directoryname);
-
-			// Output to app UITextView
-			display.Text = "A directory was created." + Environment.NewLine
-						+ "-----------------" + Environment.NewLine
-						+ directoryname;
-		}
-	}
-}

FileSystemSampleCode/FileSystem/TestData/TestXml.cs

@@ -1,13 +0,0 @@
-using System;
-using Foundation;
-
-namespace FileSystem
-{
-	[Preserve (AllMembers = true)]
-	public class TestXml
-	{
-		public string Title;
-		public string Description;
-	}
-}
-

FileSystemSampleCode/FileSystem/ViewController.cs

@@ -0,0 +1,52 @@
+using System;
+using UIKit;
+
+namespace FileSystem
+{
+    public partial class ViewController : UIViewController
+    {
+        private bool writeJson = true;
+
+        protected ViewController(IntPtr handle) : base(handle) { }
+
+        partial void OpenReadMe(UIButton sender)
+        {
+            textView.Text = DataManager.ReadText();
+        }
+
+        partial void OpenTestFile(UIButton sender)
+        {
+            textView.Text = DataManager.ReadXml();
+        }
+
+        partial void ListDirectories(UIButton sender)
+        {
+            textView.Text = DataManager.ReadDirectories();
+        }
+
+        partial void ListAll(UIButton sender)
+        {
+            textView.Text = DataManager.ReadAll();
+        }
+
+        partial void WriteFile(UIButton sender)
+        {
+            var text = string.Empty;
+            if (writeJson)
+            {
+                text = DataManager.WriteJson();
+            }
+            else
+            {
+                text = DataManager.WriteFile();
+            }
+
+            textView.Text = text;
+        }
+
+        partial void CreateDirectory(UIButton sender)
+        {
+            textView.Text = DataManager.CreateDirectory();
+        }
+    }
+}

FileSystemSampleCode/FileSystem/ViewController.designer.cs

@@ -0,0 +1,52 @@
+// WARNING
+//
+// This file has been generated automatically by Visual Studio from the outlets and
+// actions declared in your storyboard file.
+// Manual changes to this file will not be maintained.
+//
+using Foundation;
+using System;
+using System.CodeDom.Compiler;
+
+namespace FileSystem
+{
+    [Register ("ViewController")]
+    partial class ViewController
+    {
+        [Outlet]
+        [GeneratedCode ("iOS Designer", "1.0")]
+        UIKit.UITextView textView { get; set; }
+
+        [Action ("CreateDirectory:")]
+        [GeneratedCode ("iOS Designer", "1.0")]
+        partial void CreateDirectory (UIKit.UIButton sender);
+
+        [Action ("ListAll:")]
+        [GeneratedCode ("iOS Designer", "1.0")]
+        partial void ListAll (UIKit.UIButton sender);
+
+        [Action ("ListDirectories:")]
+        [GeneratedCode ("iOS Designer", "1.0")]
+        partial void ListDirectories (UIKit.UIButton sender);
+
+        [Action ("OpenReadMe:")]
+        [GeneratedCode ("iOS Designer", "1.0")]
+        partial void OpenReadMe (UIKit.UIButton sender);
+
+        [Action ("OpenTestFile:")]
+        [GeneratedCode ("iOS Designer", "1.0")]
+        partial void OpenTestFile (UIKit.UIButton sender);
+
+        [Action ("WriteFile:")]
+        [GeneratedCode ("iOS Designer", "1.0")]
+        partial void WriteFile (UIKit.UIButton sender);
+
+        void ReleaseDesignerOutlets ()
+        {
+            if (textView != null) {
+                textView.Dispose ();
+                textView = null;
+            }
+        }
+    }
+}

FileSystemSampleCode/FileSystem/packages.config

@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Newtonsoft.Json" version="7.0.1" targetFramework="xamarinios10" />
+  <package id="Newtonsoft.Json" version="11.0.2" targetFramework="xamarinios10" />
 </packages>

FileSystemSampleCode/WorkingWithTheFileSystem.sln

@@ -1,7 +1,9 @@
 
 Microsoft Visual Studio Solution File, Format Version 11.00
 # Visual Studio 2010
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FileSystem", "FileSystem\FileSystem.csproj", "{367D4ECC-D04A-41FB-A784-4D10F30666C8}"
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FileSystem2", "FileSystem2\FileSystem2.csproj", "{367D4ECC-D04A-41FB-A784-4D10F30666C8}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "FileSystem", "FileSystem\FileSystem.csproj", "{7652DDB4-2A98-4533-8B7A-A662DACF04EB}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -19,6 +21,14 @@ Global
 		{367D4ECC-D04A-41FB-A784-4D10F30666C8}.Release|iPhone.Build.0 = Release|iPhone
 		{367D4ECC-D04A-41FB-A784-4D10F30666C8}.Release|iPhoneSimulator.ActiveCfg = Release|iPhoneSimulator
 		{367D4ECC-D04A-41FB-A784-4D10F30666C8}.Release|iPhoneSimulator.Build.0 = Release|iPhoneSimulator
+		{7652DDB4-2A98-4533-8B7A-A662DACF04EB}.Debug|iPhoneSimulator.ActiveCfg = Debug|iPhoneSimulator
+		{7652DDB4-2A98-4533-8B7A-A662DACF04EB}.Debug|iPhoneSimulator.Build.0 = Debug|iPhoneSimulator
+		{7652DDB4-2A98-4533-8B7A-A662DACF04EB}.Release|iPhoneSimulator.ActiveCfg = Release|iPhoneSimulator
+		{7652DDB4-2A98-4533-8B7A-A662DACF04EB}.Release|iPhoneSimulator.Build.0 = Release|iPhoneSimulator
+		{7652DDB4-2A98-4533-8B7A-A662DACF04EB}.Debug|iPhone.ActiveCfg = Debug|iPhone
+		{7652DDB4-2A98-4533-8B7A-A662DACF04EB}.Debug|iPhone.Build.0 = Debug|iPhone
+		{7652DDB4-2A98-4533-8B7A-A662DACF04EB}.Release|iPhone.ActiveCfg = Release|iPhone
+		{7652DDB4-2A98-4533-8B7A-A662DACF04EB}.Release|iPhone.Build.0 = Release|iPhone
 	EndGlobalSection
 	GlobalSection(MonoDevelopProperties) = preSolution
 		StartupItem = FileSystem\FileSystem.csproj